Classify the input using one of these labels: neutral, positive, and negative. @SouthwestAir adding direct flights from #Columbus to #Oakland, @BostonLogan 
http://t.co/p8Vcz4XTHM via @DispatchAlerts
system
Classify the input using one of these labels: neutral, positive, and negative. @SouthwestAir adding direct flights from #Columbus to #Oakland, @BostonLogan 
http://t.co/p8Vcz4XTHM via @DispatchAlerts
user
neutral
assistant
system
Classify the input using one of these labels: neutral, positive, and negative. @SouthwestAir adding direct flights from #Columbus to #Oakland, @BostonLogan 
http://t.co/p8Vcz4XTHM via @DispatchAlerts
user
negative
assistant